[TypedAction] on type freeze show EDT stack trace in exception message, decreased allowed max time to 500ms

platform/platform-api/src/com/intellij/openapi/editor/actionSystem/TypedAction.java

@@ -172,7 +172,7 @@ class FreezeLogger {
   
   private static final Logger LOG = Logger.getInstance(FreezeLogger.class);
   private static final Alarm ALARM = new Alarm(Alarm.ThreadToUse.POOLED_THREAD, Disposer.newDisposable());
-  private static final int MAX_ALLOWED_TIME = 1000;
+  private static final int MAX_ALLOWED_TIME = 500;
   
   public static void runUnderPerformanceMonitor(Runnable action) {
     ALARM.cancelAllRequests();
@@ -187,7 +187,12 @@ class FreezeLogger {
   }
   
   private static void dumpThreads() {
-    LOG.error("Slow typing report, thread dumps attached", ThreadDumper.dumpThreadsToString());
+    String dumps = ThreadDumper.dumpThreadsToString();
+    String msg = "Typing freeze report, thread dumps attached. EDT stacktrace:\n" 
+                 + ThreadDumper.dumpEdtStackTrace() 
+                 + "\n\n\n";
+    
+    LOG.error(msg, dumps);
   }
   
 }

platform/util/src/com/intellij/diagnostic/ThreadDumper.java

@@ -41,6 +41,18 @@ public class ThreadDumper {
     dumpThreadsToFile(ManagementFactory.getThreadMXBean(), writer);
     return writer.toString();
   }
+  
+  @NotNull
+  public static String dumpEdtStackTrace() {
+    ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
+    ThreadInfo[] threads = sort(threadMXBean.dumpAllThreads(false, false));
+    StringWriter writer = new StringWriter();
+    if (threads.length > 0) {
+      StackTraceElement[] trace = threads[0].getStackTrace();
+      printStackTrace(writer, trace);
+    }
+    return writer.toString();
+  }
 
   @NotNull
   public static ThreadDump getThreadDumpInfo(@NotNull final ThreadMXBean threadMXBean) {
@@ -128,10 +140,19 @@ public class ThreadDumper {
       }
 
       f.write(sb + "\n");
+      printStackTrace(f, stackTraceElements);
+      f.write("\n");
+    }
+    catch (IOException e) {
+      throw new RuntimeException(e);
+    }
+  }
+
+  private static void printStackTrace(@NotNull Writer f, @NotNull StackTraceElement[] stackTraceElements) {
+    try {
       for (StackTraceElement element : stackTraceElements) {
         f.write("\tat " + element.toString() + "\n");
       }
-      f.write("\n");
     }
     catch (IOException e) {
       throw new RuntimeException(e);